Engineers are about halfway done installing a 500-foot test section of the Herbert Hoover Dike around Lake Okeechobee – with a construction technique never before used in the U-S. Repairs are underway after inspectors concluded parts of the aging 140-mile long structure need to be upgraded or it could pose a grave and imminent danger to those living near it. WGCU's Mike Kiniry spoke to Mike Rogalski, the Herbert Hoover Dike project manager for the U-S Army Corps of Engineers in the Jacksonville District to learn more about the process, and the overall project…